Abstract
In cloud storage system, when we search similar documentation files, keyword-based similarity evaluation scheme is well performed. However, if we want to find similar binary files then it is very difficult to satisfy user request. Because there is no widely used binary file search system that supports similarity evaluation among files. File similarity evaluation is essential for digital forensic and data deduplication field. In the file similarity processing time, the CPU consumption and resource overhead of memory are increased as the number of files increase. Moreover, as the file size is getting bigger, the overhead of metadata management is critical. In this paper, we suggest the similarity evaluation scheme using a hybrid chunking which reduce overall processing time of similarity evaluation. Experiment result shows that the proposed system can reduce processing time and data storage capacity effectively.
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